5444423440 has 40 divisors (see below), whose sum is σ = 12781199808. Its totient is φ = 2156622720.

The previous prime is 5444423393. The next prime is 5444423443. The reversal of 5444423440 is 443244445.

It is a tau number, because it is divible by the number of its divisors (40).

It is a hoax number, since the sum of its digits (34) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 5444423396 and 5444423405.

It is not an unprimeable number, because it can be changed into a prime (5444423443) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 322126 + ... + 338605.

Almost surely, 2^5444423440 is an apocalyptic number.

It is an amenable number.

5444423440 is an abundant number, since it is smaller than the sum of its proper divisors (7336776368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

5444423440 is a wasteful number, since it uses less digits than its factorization.

5444423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 660847 (or 660841 counting only the distinct ones).

The product of its (nonzero) digits is 122880, while the sum is 34.

The square root of 5444423440 is about 73786.3364045133. The cubic root of 5444423440 is about 1759.2084336441.

Adding to 5444423440 its reverse (443244445), we get a palindrome (5887667885).

The spelling of 5444423440 in words is "five billion, four hundred forty-four million, four hundred twenty-three thousand, four hundred forty".